Coil form with integral comb-like fins on at least one end flange

Abstract

This invention concerns a coil form with integral comb-like fins at least on one end, between which contact elements are placed that can be connected with the winding ends of the windings. Each contact element is held by the fastening grooves of two adjacent fins. In order that all connecting points can be made in the same, universal fashion, independent of the wire diameter of the individual winding leads, the contact elements are provided with a "U"-shaped receiving channel running parallel to the coil form axis. This receiving channel can be closed by a cover and can be ultrasonic welding to the walls of the receiving channel and to the winding ends inserted therein.

What is claimed as new and desired to be secured as Letters Patent of the United States is: 
     
       1. A coil form having at least one end flange with integral comb-like fins, between which there are fastening grooves into which metallic contact elements are placed so as to be connectable with ends of a winding, each such contact element being held in the fastening grooves of two adjacent comb-like fins, wherein each contact element has a "U"-shaped receiving channel oriented parallel to a longitudinal axis of the coil form, and a hinged cover of single-piece construction with said channel between said fins and each said receiving channel is adapted to be closed by its respective cover which can be ultrasonically welded to a side wall of each receiving channel and to a winding lead inserted thereinto. 
     
     
       2. A coil form according to claim 1, wherein one end of the receiving channel has an integral mounting clip which can be inserted into the fastening grooves which run perpendicularly to the longitudinal axis of the coil form. 
     
     
       3. A coil form according to claim 1, wherein said cover is a foldable tab on at least one side wall of the receiving channel. 
     
     
       4. A coil form according to claim 2 wherein the cover is a foldable tab on at least one side wall of the receiving channel. 
     
     
       5. A coil form according to claim 3, wherein the tab is connected to said side wall by means of at least one web. 
     
     
       6. A coil form according to claim 4, wherein the tab is connected to said side wall by means of at least one web. 
     
     
       7. A coil form according to claim 3, wherein a notch-shaped groove is made at the transition between said side wall and said tab. 
     
     
       8. A coil form according to claim 4, wherein a notch-shaped groove is made at the transition between said side wall and said tab. 
     
     
       9. A coil form according to claim 1, wherein clamping tabs, serving to relieve the tension on wires to be corrected, are provided on the contact elements in an axial extension of the receiving channel as axial extensions of said receiving channel.